Retinol is one of the most proven ingredients for improving texture, signs of ageing, and cellular turnover, but its potency means it must be used thoughtfully. Conflicting advice often oversimplifies retinol pairing, yet effective routines rely on understanding ingredient interactions, timing, and skin barrier support. Whether you’re starting with INKEY’s Starter Retinol or using our Advanced Retinal that works up to 11 times faster, the right layering approach ensures maximum benefits while protecting skin health. This guide breaks down the science behind retinol compatibility into clear, practical advice so you can use retinoids with confidence—not caution.

Mineral vs chemical sunscreen: one of skincare’s biggest debates - and one of its most misunderstood. Both protect effectively against UV damage, but they differ in texture, finish, and wearability. This guide breaks down the real science behind both filter types, the truth about “chemical sunscreen” myths, and how to choose the SPF you’ll actually wear every day.

SPF 30 or SPF 50? The difference is smaller than most people think - but how you apply sunscreen matters far more than the number on the bottle. In this evidence-based guide, we break down what SPF ratings actually mean, why most people aren’t getting the protection they think they are, when SPF 50 is genuinely worth it, and how UV exposure changes across different US climates. From tanning myths to application mistakes, this is your practical, no-nonsense guide to choosing the right SPF for your skin, lifestyle, and daily routine.

Reapplying sunscreen is the part of SPF that actually keeps your skin protected - but for most people, makeup gets in the way. This guide explains why sunscreen needs topping up throughout the day, how often to reapply, and the easiest ways to layer SPF over makeup without ruining your base. From beauty blender techniques to common SPF mistakes, here’s everything you need to know for real-world sun protection.

Daily SPF is not just a summer habit - it is one of the most important long-term investments you can make in your skin health. In this guide, we break down the science behind year-round UV exposure, explain the difference between UVA and UVB rays, and explore why winter, cloudy days, indoor light through windows, and even daily commutes still expose your skin to cumulative damage. Backed by clinical research and UK seasonal UV data, this article explains exactly how daily broad-spectrum SPF helps prevent premature ageing, pigmentation, collagen breakdown, and long-term skin damage - while showing you how to build an effective winter skincare routine around it.

Learn how long skincare products really last, what the PAO symbol means, and how to store your skincare properly to keep formulas safe, stable, and effective. From Vitamin C and retinoids to cleansing balms and eye creams, this complete guide explains what causes products to expire, when a skincare fridge helps (and when it doesn’t), plus the warning signs a product has gone off.

Skincare acids can transform your skin — when you know which one to use. From glycolic acid for glow and texture, to salicylic acid for breakouts and PHAs for sensitive skin, this guide breaks down exactly what each acid does, who it’s best for, and how to use it safely for clearer, brighter, healthier-looking skin.

Men’s skin is biologically different - producing more oil, experiencing regular shaving stress, and often dealing with larger pores, congestion, and sensitivity. This complete guide breaks down exactly how to build an effective men’s skincare routine, from cleansing and hydration to shaving care, beard maintenance, and product layering. Whether you are starting from scratch or refining your current routine, discover the essential ingredients, routines, and expert-backed tips that help keep male skin clear, healthy, and protected every day

Your skin doesn’t need the same routine all year round - and treating it like it does could be holding your skin back. From winter dryness and barrier disruption to summer oiliness and breakouts, seasonal changes directly affect how your skin behaves. In this complete guide, we break down exactly how to adapt your skincare routine for spring, summer, autumn, and winter, including the products to switch, the ingredients to prioritise, and the signs your skin is giving you each season. Whether your skin is feeling dehydrated, congested, dull, or sensitive, this guide will help you build a routine that works with your skin all year long.

Your skin deserves more than a one-size-fits-all routine. This complete skincare guide breaks down exactly how to build an effective AM and PM routine based on your skin type - whether you’re oily, dry, combination, sensitive, or blemish-prone. From identifying your true skin type to choosing the right actives, layering products correctly, and avoiding the most common skincare mistakes, this guide gives you everything you need to create a routine that actually works. Featuring step-by-step routines, expert ingredient advice, and tailored product recommendations from The INKEY List.

Niacinamide is one of the most effective and well-tolerated ingredients for blemish-prone skin - and the science behind it is stronger than most people realise. This guide breaks down exactly how niacinamide helps reduce breakouts through four clinically backed mechanisms: calming inflammation, regulating excess oil, supporting the skin barrier, and helping fade post-breakout marks. We also answer the most searched questions around niacinamide and acne - including whether it causes purging (it doesn’t), whether it can worsen breakouts, and how to build it into a routine that actually works.

Discover what post-inflammatory hyperpigmentation (PIH) really is, why acne leaves dark marks behind, and how to fade them effectively. From Tranexamic Acid and Niacinamide to SPF and retinoids, this complete guide breaks down the best ingredients, routines, and prevention tips to help visibly reduce post-acne dark marks and support clearer, more even-looking skin.

A guide to how long tranexamic acid takes to work - from the first visible improvements at 2–4 weeks to significant fading of hyperpigmentation, dark spots, melasma, and post-blemish marks at 6–12 weeks. Discover the real results timeline, what affects your progress, and how to maximise results with INKEY’s 2% Tranexamic Acid Serum.

Red light therapy has become a popular non-invasive treatment for skin concerns like fine lines, redness, acne, and dullness. Using specific wavelengths of red and near-infrared light, it helps stimulate cellular energy, supporting collagen production, healing, and overall skin renewal.

In this guide, we explore how red light therapy works, the benefits backed by research, and key safety considerations. We’ll also highlight effective skincare alternatives that can deliver similar results, including clinically proven ingredients like retinoids, vitamin C, peptides, niacinamide, and ceramides — with targeted INKEY List products to help you achieve healthy, glowing skin without investing in a device.

Smart skinimalism is the 2026 skincare trend redefining results through simplicity. Backed by science, this approach prioritises skin barrier health and multi-functional ingredients over excessive layering. Discover why simplified routines can reduce irritation by up to 40% and how to build an effective, evidence-based 3-step routine for healthier, more resilient skin.

Struggling with persistent breakouts, pigmentation, or excess oil? The 360 Acne Clearing Serum is here to change your skincare game. This all-in-one formula is designed to visibly improve blemish-prone skin by targeting every stage of a breakouts.

If you struggle with breakouts, you’ve probably heard of these ingredients before: Salicylic Acid and Benzoyl Peroxide. Both are key for keeping skin clear and smooth, but they do so in totally different ways.

This science-backed guide explains exactly how retinol improves acne scars, dark spots, and red marks — and how to use it safely for real, visible results. Learn the difference between PIH, PIE, and true acne scars, how retinol works at a cellular level, and how to choose the right INKEY retinol strength for your skin. With step-by-step routines, realistic timelines, and clinically proven solutions, this guide gives you everything you need to transform post-acne skin with confidence.

Consider us your token skincare friend. Meet, Real Results with INKEY. This is our dedicated series where we pass off the mic to our very own customers, who will share their reviews and recommendations on some of our products.

Introducing your new hyperpigmentation hero - Mandelic Acid. A member of the Alpha Hydroxy Acid family, we’ve formulated this gentle treatment to target marks and scarring caused by breakouts as well as pigmentation concerns. 

There are a few reasons why acne scars occur. Firstly, not all acne will result in scarring and even if it does, there are plenty of treatments to reduce their appearance and help them disappear completely. Learn what can cause scarring, how to get rid of scarring and prevent the risk of them occurring.